formbook | 9d1386eddd2a00f8d0450970fced6969aaeb4ab7e5da9fe46fd3423140681142

General

Target

TRNSF.exe
Size

1.1MB
MD5

fe9fba11b0354b03ec4374321cf5d7f2
SHA1

5e52cfbf1f5020337a2bfafe83881217df3869dd
SHA256

1fc7c86df7aa45224f6c8f4a94513663dfe77dc79603a0c1325736c376aa68e2
SHA512

41f9145b538668034d4812ac5cfc8020c59a9d905715b8370dfac6fde11ca613bb1a70c45819883244af81798b5370e3542001bda0bc783c7d1ff1a7160511d9
SSDEEP

12288:bmqWFHmsSSMPQipP5JG/UXU9l9SG8nB2A+WwWL5ED96ZaeAiMJVpQhoEp53UC:SRHHipHCUkVWB2hr+ED96ZyquEplU

Score

10^/10

formbook gbwy discovery rat spyware stealer trojan

Malware Config

Extracted

Family

formbook

Version

4.1

Campaign

gbwy

Decoy

fortnitegol.com

damoa.clinic

flifeunite.com

smacey.com

geekflare.host

teachflame.com

moneymakersclub.net

hollstore.com

virtual-box.cloud

electrojagat.com

lucianenergy.com

sagradha.net

bluehatcrypto.com

brandaotec.com

elisabeth-koblitz.com

miamielc-kuwait.com

juicedbikeszendesk.com

artesiansalt.com

avisena.net

homiesexuals.com

Signatures

Formbook
Formbook is a data stealing malware which is capable of stealing data.
trojan spyware stealer formbook
Formbook family
formbook

Formbook payload 4 IoCs

rat

resource	yara_rule
behavioral2/memory/1128-18-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/1128-23-0x0000000000400000-0x000000000042E000-memory.dmp	formbook
behavioral2/memory/3632-31-0x0000000000F40000-0x0000000000F6E000-memory.dmp	formbook
behavioral2/memory/3632-36-0x0000000000F40000-0x0000000000F6E000-memory.dmp	formbook

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3227495264-2217614367-4027411560-1000\Control Panel\International\Geo\Nation	TRNSF.exe

Suspicious use of SetThreadContext 3 IoCs

description	pid	Process	procid_target
PID 4088 set thread context of 1128	4088	TRNSF.exe	92
PID 1128 set thread context of 3436	1128	TRNSF.exe	54
PID 3632 set thread context of 3436	3632	msiexec.exe	54

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 4 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	TRNSF.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	schtasks.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	msiexec.exe

Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence execution

Scheduled Task

T1053.005

pid	Process
2752	schtasks.exe

Suspicious behavior: EnumeratesProcesses 36 IoCs

pid	Process
1128	TRNSF.exe
1128	TRNSF.exe
1128	TRNSF.exe
1128	TRNSF.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe
3632	msiexec.exe

Suspicious behavior: MapViewOfSection 5 IoCs

pid	Process
1128	TRNSF.exe
1128	TRNSF.exe
1128	TRNSF.exe
3632	msiexec.exe
3632	msiexec.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	1128	TRNSF.exe
Token: SeDebugPrivilege	3632	msiexec.exe

Suspicious use of WriteProcessMemory 15 IoCs

description	pid	Process	procid_target
PID 4088 wrote to memory of 2752	4088	TRNSF.exe	90
PID 4088 wrote to memory of 2752	4088	TRNSF.exe	90
PID 4088 wrote to memory of 2752	4088	TRNSF.exe	90
PID 4088 wrote to memory of 1128	4088	TRNSF.exe	92
PID 4088 wrote to memory of 1128	4088	TRNSF.exe	92
PID 4088 wrote to memory of 1128	4088	TRNSF.exe	92
PID 4088 wrote to memory of 1128	4088	TRNSF.exe	92
PID 4088 wrote to memory of 1128	4088	TRNSF.exe	92
PID 4088 wrote to memory of 1128	4088	TRNSF.exe	92
PID 3436 wrote to memory of 3632	3436	Explorer.EXE	93
PID 3436 wrote to memory of 3632	3436	Explorer.EXE	93
PID 3436 wrote to memory of 3632	3436	Explorer.EXE	93
PID 3632 wrote to memory of 2100	3632	msiexec.exe	94
PID 3632 wrote to memory of 2100	3632	msiexec.exe	94
PID 3632 wrote to memory of 2100	3632	msiexec.exe	94

C:\Windows\Explorer.EXE
C:\Windows\Explorer.EXE
1⤵
- Suspicious use of WriteProcessMemory
PID:3436
- C:\Users\Admin\AppData\Local\Temp\TRNSF.exe
  "C:\Users\Admin\AppData\Local\Temp\TRNSF.exe"
  2⤵
  - Checks computer location settings
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious use of WriteProcessMemory
  PID:4088
- - C:\Windows\SysWOW64\schtasks.exe
    "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\CgGYkEzZSUvqy" /XML "C:\Users\Admin\AppData\Local\Temp\tmp7017.tmp"
    3⤵
    - System Location Discovery: System Language Discovery
    - Scheduled Task/Job: Scheduled Task
    PID:2752
- - C:\Users\Admin\AppData\Local\Temp\TRNSF.exe
    "C:\Users\Admin\AppData\Local\Temp\TRNSF.exe"
    3⤵
    - Suspicious use of SetThreadContext
    - Suspicious behavior: EnumeratesProcesses
    - Suspicious behavior: MapViewOfSection
    - Suspicious use of AdjustPrivilegeToken
    PID:1128
- C:\Windows\SysWOW64\msiexec.exe
  "C:\Windows\SysWOW64\msiexec.exe"
  2⤵
  - Suspicious use of SetThreadContext
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious behavior: MapViewOfSection
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of WriteProcessMemory
  PID:3632
- - C:\Windows\SysWOW64\cmd.exe
    /c del "C:\Users\Admin\AppData\Local\Temp\TRNSF.exe"
    3⤵
    - System Location Discovery: System Language Discovery
    PID:2100

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Persistence

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Privilege Escalation

Scheduled Task/Job

1

T1053

Scheduled Task

1

T1053.005

Defense Evasion

Credential Access

Discovery

Query Registry

1

T1012

System Information Discovery

2

T1082

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Users\Admin\AppData\Local\Temp\tmp7017.tmp

Filesize
1KB

MD5
7309e788a5cc86ab1a3782d1aa8a21dc

SHA1
8f06918c6e9a65f8a34213fc40fc03218140c26e

SHA256
e13ad4c514a903b2616d66e478a3e949006c7f388774e9898ce0802e01552c76

SHA512
6ed83f997ce1b1ccbd3ee63a2bd4443fc3c5562255d4125113a00c3b884989fd5344d94404688e59190fcc53c115ce9a7b3ff444f8a7e69f7386461f6607d9f5

Download Submit
memory/1128-24-0x0000000000F80000-0x0000000000F94000-memory.dmp

Filesize
80KB

Download
memory/1128-23-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/1128-21-0x0000000001400000-0x000000000174A000-memory.dmp

Filesize
3.3MB

Download
memory/1128-18-0x0000000000400000-0x000000000042E000-memory.dmp

Filesize
184KB

Download
memory/3436-42-0x00000000070D0000-0x00000000071B6000-memory.dmp

Filesize
920KB

Download
memory/3436-40-0x00000000070D0000-0x00000000071B6000-memory.dmp

Filesize
920KB

Download
memory/3436-39-0x00000000070D0000-0x00000000071B6000-memory.dmp

Filesize
920KB

Download
memory/3436-33-0x0000000008880000-0x0000000008A15000-memory.dmp

Filesize
1.6MB

Download
memory/3436-25-0x0000000008880000-0x0000000008A15000-memory.dmp

Filesize
1.6MB

Download
memory/3632-30-0x0000000000850000-0x0000000000862000-memory.dmp

Filesize
72KB

Download
memory/3632-26-0x0000000000850000-0x0000000000862000-memory.dmp

Filesize
72KB

Download
memory/3632-36-0x0000000000F40000-0x0000000000F6E000-memory.dmp

Filesize
184KB

Download
memory/3632-34-0x0000000002FC0000-0x0000000003053000-memory.dmp

Filesize
588KB

Download
memory/3632-32-0x0000000003060000-0x00000000033AA000-memory.dmp

Filesize
3.3MB

Download
memory/3632-31-0x0000000000F40000-0x0000000000F6E000-memory.dmp

Filesize
184KB

Download
memory/3632-28-0x0000000000850000-0x0000000000862000-memory.dmp

Filesize
72KB

Download
memory/4088-8-0x00000000052C0000-0x00000000052D6000-memory.dmp

Filesize
88KB

Download
memory/4088-9-0x00000000752CE000-0x00000000752CF000-memory.dmp

Filesize
4KB

Download
memory/4088-5-0x0000000004D90000-0x0000000004D9A000-memory.dmp

Filesize
40KB

Download
memory/4088-7-0x0000000004EF0000-0x0000000004F46000-memory.dmp

Filesize
344KB

Download
memory/4088-0-0x00000000752CE000-0x00000000752CF000-memory.dmp

Filesize
4KB

Download
memory/4088-11-0x00000000068E0000-0x0000000006972000-memory.dmp

Filesize
584KB

Download
memory/4088-20-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/4088-6-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/4088-4-0x0000000004DF0000-0x0000000004E82000-memory.dmp

Filesize
584KB

Download
memory/4088-10-0x00000000752C0000-0x0000000075A70000-memory.dmp

Filesize
7.7MB

Download
memory/4088-12-0x0000000008F20000-0x0000000008F76000-memory.dmp

Filesize
344KB

Download
memory/4088-3-0x0000000005300000-0x00000000058A4000-memory.dmp

Filesize
5.6MB

Download
memory/4088-2-0x0000000004CB0000-0x0000000004D4C000-memory.dmp

Filesize
624KB

Download
memory/4088-1-0x00000000001E0000-0x00000000002F6000-memory.dmp

Filesize
1.1MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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